CN214244330U - Device for producing liquefied natural gas by adopting liquid nitrogen - Google Patents
Device for producing liquefied natural gas by adopting liquid nitrogen Download PDFInfo
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- CN214244330U CN214244330U CN202023133891.8U CN202023133891U CN214244330U CN 214244330 U CN214244330 U CN 214244330U CN 202023133891 U CN202023133891 U CN 202023133891U CN 214244330 U CN214244330 U CN 214244330U
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Abstract
A device for producing liquefied natural gas by adopting liquid nitrogen comprises a shell, wherein one end of the shell is communicated with an air inlet pipe, the other end of one end of the shell is communicated with an air outlet pipe, and flow valves are arranged on the air inlet pipe and the air outlet pipe; the refrigerating mechanism is arranged in the shell and comprises a plurality of liquid nitrogen pipes, two ends of each liquid nitrogen pipe are communicated with connecting pipes, the ends of the two connecting pipes which are connected are provided with threaded grooves which are opposite to each other, and the two connecting pipes are connected through a bidirectional nut; and the gas-liquid separator is communicated with the outlet pipe and is provided with a liquid outlet pipe and an exhaust pipe, a buffer tank is communicated above the liquid outlet pipe, ball stop valves are arranged on the liquid outlet pipe and the exhaust pipe, and the buffer tank is arranged between the gas-liquid separator and the ball stop valves. The utility model discloses can realize liquefied natural gas's serialization production, the liquid nitrogen pipe adopts screw mechanism can increase the surface area, improves liquefaction efficiency, and a plurality of liquid nitrogen pipes pass through two-way nut to be connected, are convenient for install and dismantle, reduce cost of maintenance.
Description
Technical Field
The utility model relates to a natural gas preparation equipment field is relevant with an adopt device of liquid nitrogen production liquefied natural gas very much.
Background
Unconventional scattered natural gas resources with huge reserves exist in China, the production places of the unconventional scattered natural gas resources are far away and scattered, and the traditional fixed liquefaction plant and pipe network gathering and transportation mode is not suitable. Due to the lack of a proper gathering and transportation mode, most of the gas sources are directly emptied or burnt, on one hand, precious energy waste is caused, and on the other hand, the emission of greenhouse gases is increased. In order to reduce energy loss, the scattered natural gas resources need to be liquefied and then transported to various regions through a transportation system. The existing natural gas preparation device is low in liquefaction efficiency, and an integrated equipment structure is adopted for preventing gas leakage, so that the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
To the problem that relevant prior art exists, the utility model provides an adopt liquid nitrogen production liquefied natural gas's device, the device can realize liquefied natural gas's serialization production, and the liquid nitrogen pipe adopts screw mechanism can increase the surface area, improves liquefaction efficiency, and a plurality of liquid nitrogen pipes pass through two-way nut and connect, are convenient for install and dismantle, reduce cost of maintenance.
In order to achieve the above purpose, the utility model adopts the following technology:
an apparatus for producing liquefied natural gas using liquid nitrogen, comprising:
the device comprises a shell, wherein one end of the shell is communicated with an air inlet pipe, the other end of one end of the shell is communicated with an air outlet pipe, and the air inlet pipe and the air outlet pipe are provided with flow valves;
the refrigerating mechanism is arranged in the shell and comprises a plurality of liquid nitrogen pipes, two ends of each liquid nitrogen pipe are communicated with connecting pipes, the ends of the two connecting pipes which are connected are provided with threaded grooves which are opposite to each other, and the two connecting pipes are connected through a bidirectional nut;
and the gas-liquid separator is communicated with the outlet pipe and is provided with a liquid outlet pipe and an exhaust pipe, a buffer tank is communicated above the liquid outlet pipe, ball stop valves are arranged on the liquid outlet pipe and the exhaust pipe, and the buffer tank is arranged between the gas-liquid separator and the ball stop valves.
Further, a pressure gauge is arranged outside the shell.
Further, the shell is made of heat-insulating materials.
Further, the liquid nitrogen pipe is spiral.
Furthermore, the bottom in the shell is provided with a plurality of limiting rods, the limiting rods can slide along the length direction of the shell, and the limiting rods are matched with the inside of the liquid nitrogen pipe.
Further, the bottom is equipped with the slide rail along length direction in the casing, and the T-slot has been seted up along length direction at the slide rail top, and it is equipped with a plurality of T-shaped blocks to slide in the T-slot, and the T-shaped block is connected with the gag lever post bottom.
The utility model discloses beneficial effect:
1. the device can realize liquefied natural gas's serialization production, and the liquid nitrogen pipe adopts screw mechanism can increase the surface area, improves liquefaction efficiency, and a plurality of liquid nitrogen pipes are connected through two-way nut, and the installation and the dismantlement of being convenient for reduce cost of maintenance.
2. The connecting pipes at the two ends of the liquid nitrogen pipes are connected by utilizing the two-way nuts, then liquid nitrogen is continuously introduced into the liquid nitrogen pipes, when the temperature in the shell is reduced to a preset value, natural gas passes through the shell through the air inlet pipe, and heat exchange is generated when the natural gas is contacted with the low-temperature liquid nitrogen pipes, so that the natural gas is changed into a liquid state from a gaseous state.
3. The gas-liquid separator makes liquefied natural gas discharge by the drain pipe through handling, and gaseous then is discharged by the blast pipe, when liquefied natural gas receiving arrangement changed, can close the ball valve, and liquefied natural gas keeps in the buffer tank.
4. When liquid nitrogen pipe installation, earlier locate the gag lever post with the liquid nitrogen pipe box on, the T-shaped piece when sliding in the T-shaped inslot for the gag lever post carries liquid nitrogen pipe and removes, and two connecting pipes draw close gradually and utilize two-way nut to connect, easy operation, and gag lever post and liquid nitrogen pipe fit in inside can prevent that the liquid nitrogen pipe from warping, influences the liquid nitrogen and carries.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the connection tube structure of the present invention.
Fig. 4 is a schematic view of the slide rail structure of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 to 3, a device for producing liquefied natural gas by using liquid nitrogen includes a housing 1, a refrigeration mechanism 2 disposed in the housing 1, and a gas-liquid separator 3.
One end of the shell 1 is communicated with an air inlet pipe 101, the other end of one end of the shell 1 is communicated with an air outlet pipe 102, the air inlet pipe 101 and the air outlet pipe 102 are provided with flow valves 103, a pressure gauge 104 is arranged outside the shell 1, and the shell 1 is made of heat-insulating materials.
The refrigerating mechanism 2 includes a plurality of liquid nitrogen pipes 201, the liquid nitrogen pipes 201 are spiral, the two ends of the liquid nitrogen pipes 201 are communicated with connecting pipes 202, the end parts of the two connecting pipes 202 connected with each other are provided with threaded grooves 203 which are opposite to each other, and the two connecting pipes 202 are connected through two-way nuts 204.
And the gas-liquid separator 3 is communicated with the gas outlet pipe 102, the gas-liquid separator 3 is provided with a liquid outlet pipe 301 and an exhaust pipe 302, the upper part of the liquid outlet pipe 301 is communicated with a buffer tank 303, the liquid outlet pipe 301 and the exhaust pipe 302 are both provided with ball stop valves 304, and the buffer tank 303 is arranged between the gas-liquid separator 3 and the ball stop valves 304.
When preparing natural gas, connecting pipes 202 at two ends of a plurality of liquid nitrogen pipes 201 are connected by using two-way nuts 204, then liquid nitrogen is continuously introduced into the liquid nitrogen pipes 201, when the temperature in the shell 1 is reduced to a preset value, natural gas passes through the shell 1 through the gas inlet pipe 101, heat exchange is generated when the natural gas is contacted with the low-temperature liquid nitrogen pipes 201, the natural gas is changed into liquid from gas state, and enters the gas-liquid separator 3 together with the natural gas which is not liquefied to be treated, the liquid natural gas is discharged from the liquid outlet pipe 301, the gas is discharged from the gas exhaust pipe 302, when a liquid natural gas receiving device is replaced, the ball stop valve 304 can be closed, and the liquid natural gas is temporarily stored in the buffer tank 303; the device can realize liquefied natural gas's serialization production, and liquid nitrogen pipe 201 adopts screw mechanism can increase the surface area, improves liquefaction efficiency, and a plurality of liquid nitrogen pipes 201 are connected through two-way nut 204, and the installation and the dismantlement of being convenient for reduce cost of maintenance.
Further, as shown in fig. 4, the bottom of the shell 1 is provided with a plurality of limiting rods 4, the limiting rods 4 can slide along the length direction of the shell 1, the limiting rods 4 are matched with the liquid nitrogen pipe 201 inside, the bottom of the shell 1 is provided with a slide rail 401 along the length direction, the top of the slide rail 401 is provided with a T-shaped groove 402 along the length direction, the T-shaped groove 402 is internally provided with a plurality of T-shaped blocks 403 in a sliding manner, and the T-shaped blocks 403 are connected with the bottom of the limiting rods 4.
When liquid nitrogen pipe 201 installs, locate gag lever post 4 with liquid nitrogen pipe 201 cover earlier, when T-shaped piece 403 slides in T-shaped groove 402 for gag lever post 4 carries liquid nitrogen pipe 201 and removes, and two connecting pipes 202 draw close gradually and utilize two-way nut 204 to connect, easy operation, gag lever post 4 and liquid nitrogen pipe 201 inside cooperation can prevent that liquid nitrogen pipe 201 warp, influence the liquid nitrogen and carry.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An apparatus for producing liquefied natural gas using liquid nitrogen, comprising:
the device comprises a shell (1), wherein one end of the shell (1) is communicated with an air inlet pipe (101), the other end of one end of the shell (1) is communicated with an air outlet pipe (102), and flow valves (103) are arranged on the air inlet pipe (101) and the air outlet pipe (102);
the refrigeration mechanism (2) is arranged in the shell (1) and comprises a plurality of liquid nitrogen pipes (201), two ends of each liquid nitrogen pipe (201) are communicated with connecting pipes (202), opposite thread grooves (203) are formed in the end parts of the two connecting pipes (202) which are connected with each other, and the two connecting pipes (202) are connected with each other through two-way nuts (204);
gas-liquid separator (3), with outlet duct (102) intercommunication, gas-liquid separator (3) are equipped with drain pipe (301) and blast pipe (302), and drain pipe (301) top intercommunication has buffer tank (303), all is equipped with ball on drain pipe (301) and blast pipe (302) and ends valve (304), and buffer tank (303) are located between gas-liquid separator (3) and ball end valve (304).
2. The apparatus for producing liquefied natural gas using liquid nitrogen according to claim 1, wherein: a pressure gauge (104) is arranged outside the shell (1).
3. The apparatus for producing liquefied natural gas using liquid nitrogen according to claim 1, wherein: the shell (1) is made of heat-insulating materials.
4. The apparatus for producing liquefied natural gas using liquid nitrogen according to claim 1, wherein: the liquid nitrogen pipe (201) is spiral.
5. The apparatus for producing liquefied natural gas using liquid nitrogen according to claim 1, wherein: the bottom is equipped with a plurality of gag lever posts (4) in casing (1), and gag lever post (4) can slide along casing (1) length direction, and gag lever post (4) and liquid nitrogen pipe (201) inside cooperation.
6. The apparatus for producing liquefied natural gas using liquid nitrogen according to claim 1, wherein: the bottom is equipped with slide rail (401) along length direction in casing (1), and T-slot (402) have been seted up along length direction at slide rail (401) top, and it is equipped with a plurality of T-shaped blocks (403) to slide in T-slot (402), and T-shaped block (403) are connected with gag lever post (4) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023133891.8U CN214244330U (en) | 2020-12-23 | 2020-12-23 | Device for producing liquefied natural gas by adopting liquid nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023133891.8U CN214244330U (en) | 2020-12-23 | 2020-12-23 | Device for producing liquefied natural gas by adopting liquid nitrogen |
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| CN214244330U true CN214244330U (en) | 2021-09-21 |
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| CN202023133891.8U Active CN214244330U (en) | 2020-12-23 | 2020-12-23 | Device for producing liquefied natural gas by adopting liquid nitrogen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803924A (en) * | 2021-09-17 | 2021-12-17 | 赵宝玉 | Cell refrigerator capable of preventing cell pollution |
| CN116519433A (en) * | 2023-06-29 | 2023-08-01 | 辽宁高盛新能源有限公司 | Liquefied natural gas sampling device convenient to operation |
-
2020
- 2020-12-23 CN CN202023133891.8U patent/CN214244330U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803924A (en) * | 2021-09-17 | 2021-12-17 | 赵宝玉 | Cell refrigerator capable of preventing cell pollution |
| CN113803924B (en) * | 2021-09-17 | 2023-08-18 | 山东中科赛奥生物科技有限公司 | Cell refrigerator capable of preventing cell pollution |
| CN116519433A (en) * | 2023-06-29 | 2023-08-01 | 辽宁高盛新能源有限公司 | Liquefied natural gas sampling device convenient to operation |
| CN116519433B (en) * | 2023-06-29 | 2023-09-19 | 辽宁高盛新能源有限公司 | Liquefied natural gas sampling device convenient to operation |
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